Campus Units

Agronomy

Document Type

Article

Publication Version

Published Version

Publication Date

8-2008

Journal or Book Title

International Communications in Heat and Mass Transfer

Volume

35

Issue

7

First Page

800

Last Page

804

DOI

10.1016/j.icheatmasstransfer.2008.03.012

Abstract

Accurate measurement of heat flux is essential to optimize structural and process design and to improve understanding of energy transfer in natural systems. Laboratory and field experiments evaluated the performance of a new, perforated heat flux plate designed to reduce flow distortion for environmental applications. Laboratory tests involving dry and saturated sand showed that performance of the new CAPTEC plate is comparable to a solid, standard REBS plate. Very low thermal gradients may have however led to poor performance of the CAPTEC plate in saturated sand. Water infiltration and redistribution experiments using clayey and sandy soils showed an apparent reduced disruption of liquid water and vapour in the soil surrounding the CAPTEC plate as compared to solid Hukseflux and standard REBS plates. Surface area of REBS plate, though smaller than that of CAPTEC, did not lead to any significantly improved evaporation, due to perforations on CAPTEC plate. Field tests in a loam soil indicated that the CAPTEC plates were durable and produced daily total flux values within ~ 0.15 MJ m− 2 of independent estimates.

Comments

This article is published as Sauer, T. J., O. D. Akinyemi, Pierre Thery, J. L. Heitman, T. M. DeSutter, and Robert Horton. "Evaluation of a new, perforated heat flux plate design." International communications in heat and mass transfer 35, no. 7 (2008): 800-804. doi: 10.1016/j.icheatmasstransfer.2008.03.012. Posted with permission.

Rights

Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.

Language

en

File Format

application/pdf

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